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[simplified method for collecting larval forms of wuchereria bancrofti cobbold (var. pacifica) and their preparation for immunofluorescence]. 1978352568
intraocular filariasis. 1978350776
a standardization of microfilarial densities for epidemiological comparisons in periodic bancroftian filariasis.microfilarial density in the peripheral blood changes with time. the average concentration in a population can only be calculated if the influence of circadian periodicity is eliminated from individual measurements. a transformation of the harmonic wave formula, describing the time dependent changes in density allows to calculate the number of microfilariae at the peak of the curve from the number observed at the time of examination. the equation was tested for strains of wuchereria bancrofti fr ...1978347652
failure of diethylcarbamazine as a provocative test in subperiodic wuchereria bancrofti filariasis.the effect of diethylcarbamazine (dec) on levels of microfilaraemia in 70 patients with subperiodic, pacific-variant wuchereria bancrofti infection was studied one hour after oral administration of 5 mg/kg of drug. in contrast to the immediate dec-induced increase in microfilaraemia which had been previously described in patients with nocturnally periodic filariasis, diethylcarbamazine failed to elicit such a response in patients with subperiodic bancrofti infection. indeed, one hour after oral ...1978345536
solitary filarial breast lump. 1977344804
laboratory infection of anopheles pharoensis with wuchereria bancrofti.a. pharoensis was infected from a donor with a high count of w. bancrofti microfilariae. of the freshly dissected mosquitos, 81.6% were found to have ingested microfilariae, with an average of 12 +/- 2.2 microfilariae per mosquito. an infectivity rate of 41.9% was observed in mosquitos dissected between the eleventh and fifteenth days after feeding. a mean of 7.6 +/- 1.2 third-stage larvae was found in infective mosquitos. although a. pharoensis has not yet been found naturally infected with thi ...1977340077
some aspects of transmission of wuchereria bancrofti and ecology of the vector culex pipiens fatigans in pondicherry. 1977336534
bancroftian filariasis in kenya iii. entomological investigations in mambrui, a small coastal town, and jaribuni, a rural area more inland (coast province). 1977335992
bancroftian filariasis in kenya ii. clinical and parasitological investigations in mambrui, a small coastal town, and jaribuni, a rural area more inland (coast province). 1977335991
bancroftian filariasis in kenya i. prevalence survey among adult males in the coast province. 1977335990
parasitological and clinical survey of bancroftian filariasis in kepu district, central jakarta, indonesia.a blood and clinical survey for bancroftian filariasis was made in the kepu district of central jakarta in june 1976. about 90% of 614 inhabitants in the survey area was examined. the microfilarial rate was 4.5%; 5.8% in males and 3.3% in females. most of the carriers were asymptomatic. the microfilarial density was low. there were 15 persons (2.7%) with signs and symptoms of filariasis; 11 males and 4 females. the total filariasis infection rate was 6.7%. the percentage of infected persons incr ...1977335531
medical research in kenya. ii. parasitology. 1977333669
specific cellular immune unresponsiveness in human filariasis. 1977332621
the effect of diethylcarbamazine treatment on the development of bancroftian microfilariae in culex p. fatigans.bancroftian microfilarie survived after one to three courses of diethylcarbamazine treatment in carriers and the larvae able to reach the infective stage in culex p. fatigans. the infection rate and the development of infective larvae per infected mosquito from dec-treated carriers was much lower than from the untreated carrier. the fact that surving mf can develop to infective stage in their vector indicates that such filarial carriers may be important sources for transmission of filariasis in ...1977329427
the survival in nature of wuchereia-infected anopheles funestus giles in north-eastern tanzania.hungry anopheles funestus females were caught in cdc light traps positioned overnight in village houses in which the occupants were protected by bed nets. the sampling was performed in six huts near muheza, in north-eastern tanzania, september to november 1972. parous, unfed mosquitoes were carefully examined, usually under phase-contrast optics, for the presence of developing wuchereria bancrofti larvae. because a. funestus seek blood meals at three-day intervals, most filariae were three, six, ...1977327630
filariasis in the united states. 1977325071
a modified statistical method for analysis of periodicity of microfilaria. 1977324907
epidemiological investigations of bancroftian filariasis in the coastal zone liberia.a survey in 5 study areas along the liberian coast was conducted to gain information on the prevalence and importance of bancroftian filariasis. the examination of 2675 persons revealed prevalence rates between 2% and 37%. the median microfilarial densities (mfd50) ranged from 5 to 24 microfilariae in 20 mm3 capillary blood taken between 20.30 hours and midnight. catalytic curves fitted to age-specific infection rates were used to estimate incidence (1% to 3%) and recovery rates. it was extrapo ...1977324055
on the inheritance of susceptibility for infection with wuchereria bancrofti in culex pipiens fatigans.from a colony of c.p.fatigans from monrovia showing 21.6% susceptibility of w. bancrofti a refractory strain could be selected but not a highly susceptible one. experiments to select a refractory strain out of the highly susceptible colony from delhi failed. from these results and those of the crossing experiments between the selected refractory strain from monrovia and the delhi colony it appears that in the mosquito population from monrovia susceptibility for w. bancrofti is not dominating ref ...1977324054
sensitivity and specificity of skin reactivity to brugia malayi and dirofilaria immitis antigens in bancroftian and malayan filariasis in the philippines.saline antigen extracts of microfilariae, adult worms and third-stage larvae of subperiodic brugia malayi maintained in gerbils were prepared for use as skin test reagents. patients were studied on three different islands in the philippines, one endemic for bancroftian filariasis (sorsogon, luzon), another endemic for malayan filariasis (palawan) and the third without endemic filariasis (cebu). a dose-response curve was established initially in patients with bancroftian filariasis: thereafter 1. ...1977322516
chyluria: a case report and brief literature review.a case of chyluria presumably caused by filaria bancrofti is presented. the radiographic and urologic presentation as well as a brief review of the natural history, diagnosis and treatment is included.1977320350
attempts to infect jirds (meriones unguiculatus) with wuchereria bancrofti, onchocerca volvulus, loa loa loa and mansonella ozzardi. 1977267662
[control of bancroftian filariasis by common salt medicated with diethylcarbamazine on little kinmen (quemoy) island. 1. epidemiological study]. 1975238801
[study of the possibility of infection of mosquitoes with larvae of wuchereria bancrofti in northern caucasus]. 1978148572
experimental transmission of wuchereria bancrofti to monkeys.infective larvae of wuchereria bancrofti from laboratory-raised culex pipiens fatigans and aedes togoi mosquitoes fed on human volunteers in jakarta, indonesia (j strain) and kinmen island, china (k strain) were introduced into taiwan monkeys (macaca cyclopis) by subcutaneous inoculation, by foot puncture, or by permitting infected mosquitoes to feed weekly on the monkeys. some animals were splenectomized and others were treated with varying regimens of immunosuppressants. necropsy was done on m ...1979107818
experimental infection of the long-tailed macaque, macaca fasicularis with wuchereria bancrofti (rural strain). 1978107598
filariasis bancrofti and chronic illness behavior. 1978104198
filarial nodule of the female breast. clinicopathologic study of 57 cases. 197898307
studies on filariasis transmission in kwale, a tanzanian coastal village, and the results of mosquito control measures.the main vectors of bancroftian filariasis in kwale, tanzania, were anopheles gambiae complex and culex p. quinquefasciatus. after vector control by the insecticides dursban (chlorpyrifos) or abate (temephos), the number of all man-biting mosquitoes was reduced by 94.8%, and that of house-resting mosquitoes by 95.3%. anopheles gambiae complex were highly exophilic, possibly due to a high proportion of anopheles merus in this village. the infection rate of a. gambiae complex rose significantly in ...197991349
specific allergic sensitsation to filarial antigens in tropical eosinophilia syndrome.reaginic antibodies to antigens from the human filarial parasites wuchereria bancrofti and brugia malayi and the animal parasite dirofilaria immitis were studied by histamine release from basophils in 7 patients with tropical eosinophilia (t.e.) and 18 patients with other manifestations of filarial infection (lymphatic changes or symptomless microfilaraemia). all the patients had antibodies to all three filariae but t.e. patients were more highly sensitised. t.e. patients responded more to antig ...197986883
cholinesterase activity in the microfilaria of wuchereria bancrofti cobbold.the distribution of cholinesterase activity in the microfilaria of the nocturnally periodic wuchereria bancrofti has been described. using histochemical methods, cholinesterase activity has been demonstrated in the amphids (mundgebilde), phasmids (schwanzgebilde), nerve-ring, excretory and anal vesicles of the microfilaria. it has been found that the enzyme activity disappeared completely after treatment with the specific cholinesterase inhibitor eserine. evidence is presented that the greater a ...197774889
studies on the diagnosis and treatment of human filariasis in rhodesia.experiences in rhodesia with various recovery techniques available for the laboratory diagnosis of infections with dipetalonema perstans and wuchereria bancrofti are discussed. a diagnostic laboratory regimen for routine filarial investigations is suggested. included are preliminary observations on the use of mebendazole (vermox) for the treatment of d. perstans infections.197660784
letter: a new species of microfilaria? 197546435
tanzania filariasis project. survey methodology and clinical manifestations of bancroftian filariasis.in a bancroftian filariasis survey on the coast of tanzania microfilaria rates rose with age reaching 53% in the 60-69 year group followed by a slight fall above this age. the most important clinical manifestations were hydrocoele, funiculitis and elephantiasis, with hydrocoele presenting the most serious public health problem. hydrocoele rates increased with age reaching 90% above the age of 70. the highest proportion of large hydrocoeles were also in the older age groups. a satisfactory method ...197944101
bancroftian filariasis in a philippine village: entomological findings.bancroftian filariasis in an isolated philippine village has been intensively investigated; this paper reports the entomological findings. surveys were carried out six months apart in the driest and wettest months. significant transmission was demonstrated only during the wet season. aedes poicillius was the major vector of wuchereria bancrofti. ae. poicilius accounted for 58% of larvae found in the axils of banana plants and 31% of those in abaca axils; negligible numbers of larvae of this spec ...197939349
distribution and density of mosquitoes in two endemic areas for bancroftian filariasis in sorsogon, philippines.mosquito density in rangas where abaca is in abundance is much higher, almost twice, than that of putiao where abaca is absent. the adult density of aedes poecilus over aedes ananae in the two areas combined is 3 to 4 times whereas the larval density of the former is much lower than aedes ananae. the banana axils is a favorite breeding place for aedes poecilus but may also utilize the abaca axils. this finding is very favorable in the transmission of bancroftian filariasis because this species o ...197834889
[on the ecology of filariases (author's transl)]. 197832682
the lethal effects of the cibarial and pharyngeal armatures of mosquitoes on microfilariae.microfilariae of wuchereria bancrofti and brugia pahangi were killed by the chewing action of the cibarial and pharyngeal armatures and other papillae and spines in the fore-gut of mosquitoes. the proportion of ingested microfilariae that were killed was largely dependent on the presence and shape of the cibarial armature. anopheles farauti no. 1 and anopheles gambiae species a and b have well developed cibarial armatures and killed 36 to 96% of the ingested microfilariae. culex pipiens fatigans ...197830190
filariasis in west kalimantan (borneo), indonesia.a survey was carried out among persons residing in 8 villages in the province of west kalimantan, indonesia to determine the prevalence of filariasis. finger tip blood smears were obtained at night from over 3,000 people and microfilariae of brugia malayi were found in 108 (3.5%) and wuchereria bancrofti in 10 (0.3%). most b. malayi (96 carriers) was found in kakap, a village near the coast, 20 km from the provincial capital of pontianak. nine of 10 cases of w. bancrofti were located in pahauman ...197726980
experimental brugia timori and wuchereria bancrofti infections in certain species of mosquitoes.laboratory reared aedes aegypti (black eye and jakarta strains), aedes togoi, (taiwan), aedes albopictus, (jakarta), wild caught anopheles barbirostris, (java) and mansonia uniformis, (jakarta) were fed on a carrier with mixed infection of brugia timori and wuchereria bancrofti. b. timori and w. bancrofti were able to develop in a. aegypti (black eye) and a. togoi, with development proceeding more rapidly for of b. timori than w. bancrofti. both species of parasites were readily distinguishable ...197724275
bancroftian filariasis in kenya. iv. disease distribution and transmission dynamics. 197723080
distribution of acid phosphatase activity in the larval stages of wuchereria bancrofti, brugia malayi, b. pahangi and dirofilaria immitis in the mosquito.the histochemical distribution of acid phosphatase in microfilariae and in the larval stages of four mosquito-borne filariae: wuchereria bancrofti, brugia malayi, b. pahangi and dirofilaria immitis was studied using naphthol as-tr-hexazonium technique and light microscopy. accurate differentiation between microfilariae of the four species could be made on the basis of their patterns of acid phosphatase activity. in contrast to microfilariae in the blood, the larval stages in the mosquito exhibit ...197716368
theoretical considerations in the vector control of filariasis.in order to assist in assessing progress of vector control of filariasis a theoretical model is constructed, using retrospective data on infected persons removed to a vector-free situation. this shows that the decrease of microfilaraemia is not regular, but is gradual for the first 3 years and then more rapid, reaching zero at about 10 years. an estimate is made of the level to which the vector must be reduced before transmission of filariasis ceases, showing that the degree of efficiency requir ...19755783
vector control of filariasis in the solomon islands.in solomon islands, filariasis is caused by the nocturnally perodic form of wuchereria bancrofti and is transmitted by the same vectors of malaria. this study explores the control of this disease as an additional effect of the malaria eradication programme.19753855
a study of parasites in domestic pests in households of patients with tropical pulmonary eosinophilia. 19752551
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